resistive voltage drop
41Thermistor — A thermistor is a type of resistor with resistance varying according to its temperature. The word is a portmanteau of thermal and resistor . Samuel Ruben invented the thermistor in 1930, and was awarded… …
42Buck-boost converter — Two different topologies are called buck boost converter. * The inverting topology The output voltage is of the opposite polarity as the input * A Buck (step down) converter followed by a Boost (step up) converter The output voltage is of the… …
43Current transformer — A CT for operation on a 110 kV grid In electrical engineering, a current transformer (CT) is used for measurement of electric currents. Current transformers, together with voltage transformers (VT) (potential transformers (PT)), are known as …
44Ćuk converter — Cuk redirects here. For the Idel Ural festival, see Çük. The Ćuk converter (pronounced Chook, sometimes incorrectly spelled Cuk, Čuk or Cúk) is a type of DC DC converter that has an output voltage magnitude that is either greater than or less… …
45Wattmeter — The wattmeter is an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit. Electrodynamic The traditional analog wattmeter is an electrodynamic instrument. The device consists of a… …
46Pulse-width modulation — (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. PrinciplePulse width modulation uses a square wave whose pulse… …
47Tetrode — A tetrode is an electronic device having four active electrodes. The term most commonly applies to a two grid vacuum tube. It has the three electrodes of a triode and an additional screen grid which significantly changes its behaviour. Grids The… …
48Switching amplifier — A switching amplifier or class D amplifier is an electronic amplifier which, in contrast to the active resistance used in linear mode AB class amplifiers, uses switching mode of transistor to regulate power delivery. The amplifier, therefore,… …
49Phasor (sine waves) — In physics and engineering, a phase vector ( phasor ) is a representation of a sine wave whose amplitude (A), phase (θ), and frequency (ω) are time invariant. It is a subset of a more general concept called analytic representation. Phasors reduce …
50Electrical conductor — Overhead conductors carry electric power from generating stations to customers. In physics and electrical engineering, a conductor is a material which contains movable electric charges. In metallic conductors such as copper or aluminum, the… …
